Inquiry Review #2

First Name

Answer explanation

The question is asking for the first name of a person. This typically refers to the individual's given name, which is the name chosen by their parents at birth.

Last Name

Answer explanation

The question is asking for the individual's last name, which is the surname or family name. It is the name that comes after the first name.

What skill is a scientist using when she listens to the sounds that whales make?

• making observations

• drawing conclusions

• interpreting data

• making a hypothesis

Answer explanation

When a scientist listens to the sounds that whales make, she is using the skill of making observations to gather information about the whales' communication.

Which question would be the best high level scientific question?

• Who made the first microscope?

• How many giraffes live in Africa?

• Does the amount of salt in water affect the temperature at which it boils?

• How long ago did dinosaurs live on the Earth

Answer explanation

The best high-level scientific question is 'Does the amount of salt in water affect the temperature at which it boils?' as it involves a scientific experiment and investigation.

Which of the following is NOT a rule when writing a hypothesis?

• It is testable

• It should restate the question

• It is an if/then statement

• It is a prediction.

Answer explanation

The correct choice is 'It should restate the question' because a hypothesis should propose an answer to the research question, not simply restate it.

An experiment that tests only one factor at a time by using a comparison of a control group and an experimental group is?

• a dependent variable

• a theory

• a controlled experiment

• an independent variable

Answer explanation

A controlled experiment tests one factor at a time using a control group and an experimental group to isolate the effect of the variable being studied.

Which of the following hypotheses is written correctly?

• If a tennis ball is frozen, it won't bounce as high as one that is not frozen.

• Frozen tennis balls will not bounce as high.

• If I freeze a tennis ball, then it will not bounce as high.

• If I heat up a tennis ball it will bounce high.

Answer explanation

The correct hypothesis format is 'If I freeze a tennis ball, then it will not bounce as high.' It follows the standard 'If...then...' structure for a hypothesis.

The process of obtaining information by using the senses is called a/an

• inquiry

• observation

• scientific method

• conclusion

Answer explanation

Observation is the process of obtaining information by using the senses, making it the correct choice in this context.

In an experiment, the one variable that is changed is called the independent variable.

• independent variable

• dependent variable

• controlled variable

• experimental variable

Answer explanation

The correct choice is the independent variable because it is the one variable that is changed in an experiment.

In an experiment, the factor that we measure is called the dependent variable.

• independent variable

• controlled variable

• conclusion

• dependent variable

Answer explanation

The correct choice is the dependent variable because it is the factor that is measured in an experiment.